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2 years ago

Help please can’t find this anywhere

Mathematics

1 answer:

givi [52]2 years ago

5 0

9514 1404 393

Answer:

x = 6

Step-by-step explanation:

You can actually work out the answer yourself.

The two angles shown have the total measure 168°, so the unmarked one is ...

168° -100° = 68°

That is ∠WXZ, so we know ...

68° = (5x +38)°

30 = 5x . . . . . . . . . . divide by °, subtract 38

6 = x . . . . . . . . . . . . .divide by 5

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What is the value of the expression below when z = 2? 5z^2+3z+7

Marina CMI [18]

Answer: 33

5(2)² + 3(2) + 7

20 + 6 + 7

Hope this helps!

6 0

2 years ago

Hey! Can someone check my answers?

Andrew [12]

The greatest common factor is the biggest number taken from the values.

Q1. The answer is A. 5y^6

$20 y^{9} +5 y^{6}= 4*5 y^{9}+5 y^{6}$
Since $x^{a}* x^{b} =x^{a+b}$ , then $x^{9}= x^{3}* x^{6}$

Back to our expression:
$4*5 y^{9}+5 y^{6}=4*5 y^{3}*y^{6}+5 y^{6}=4 y^{3}*5y ^{6}+ 5y ^{6}*1=5 y^{6} (4y ^{3} +1)$
The greatest common factor is thus $5 y^{6}$

Q2. The answer is D. 12xy^2

$12x y^{5}+60 x^{4} y^{2} -24 x^{3} y^{3}=12x y^{5}+5*12 x^{4} y^{2} -2*12 x^{3} y^{3}$
We will use the rule $x^{a}* x^{b} =x^{a+b}$ to factorise the exponents:
$12x y^{5}+5*12 x^{4} y^{2} -2*12 x^{3} y^{3}= \\ =12x*y^{2}*y^{3}+5*12*x* x^{3} *y^{2}-2*12x* x^{2} *y*y^{2}= \\ =12xy^{2}*y^{3}+12xy^{2}*5 x^{3} -12xy^{2}*2 x^{2} y= \\ =12xy^{2}(y^{3}+5 x^{3}-2 x^{2} y)$
The greatest common factor is thus $12xy^{2}$

3 0

3 years ago

Find last year's salary, if after a 4% pay raise, this year's salary is $34,320

Oksana_A [137]

34320*100/104 =
$33,000

4 0

2 years ago

Please Helppppp :) :)

harkovskaia [24]

Answer:

mm the answer would be

Step-by-step explanation:

1 may be

5 0

2 years ago

Read 2 more answers

Which of the following represents x =1/3y written in general form?

Serhud [2]

If you would like to write x = 1/3 * y in general form, you can do this using the following steps:

The general form of the equation is: ax + by + c = 0.

x = 1/3 * y

x - 1/3 * y = 0

The correct result would be x - 1/3 * y = 0.

4 0

2 years ago